# MSG_DCM_ORIEN

MSG_DCM_ORIEN
Packet ID 0x65
Length 36
Read / Write Read
Offset Size Format Field Unit Description
0 4 float32_t DCM[0][0] 方向余弦矩阵
4 4 float32_t DCM[0][1] 方向余弦矩阵
8 4 float32_t DCM[0][2] 方向余弦矩阵
12 4 float32_t DCM[1][0] 方向余弦矩阵
16 4 float32_t DCM[1][1] 方向余弦矩阵
20 4 float32_t DCM[1][2] 方向余弦矩阵
24 4 float32_t DCM[2][0] 方向余弦矩阵
28 4 float32_t DCM[2][1] 方向余弦矩阵
32 4 float32_t DCM[2][2] 方向余弦矩阵

DCM公式如下:

DCM[0][0] = cos(heading) * cos(pitch)

DCM[0][1] = sin(heading) * cos(pitch)

DCM[0][2] = -sin(pitch)

DCM[1][0] = -sin(heading) * cos(roll) + cos(heading) * sin(pitch) * sin(roll)

DCM[1][1] = cos(heading) * cos(roll) + sin(heading) * sin(pitch) * sin(roll)

DCM[1][2] = cos(pitch) * sin(roll)

DCM[2][0] = sin(heading) * sin(roll) + cos(heading) * sin(pitch) * cos(roll)

DCM[2][1] = -cos(heading) * sin(roll) + sin(heading) * sin(pitch) * cos(roll)

DCM[2][2] = cos(pitch) * cos(roll)